Ventilator chassis



FIG. 1 is a front perspective view of the ventilator chassis;

FIG. 2 is a front view of the ventilator chassis;

FIG. 3 is a first side view of the ventilator chassis;

FIG. 4 is a second side view of the ventilator chassis;

FIG. 5 is a back view of the ventilator chassis;

FIG. 6 is a top view of the ventilator chassis; and,

FIG. 7 is a bottom view of the ventilator chassis.

The broken lines in FIGS. 1-7 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a ventilator chassis, as shown and described. 